Unleash Your Inner Geologist
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Questions and Answers

Which type of rock consists of volcanic glass?

  • Granite
  • Quartz
  • Obsidian (correct)
  • Basalt
  • Which term refers to the solid parts of volcanic eruptions that settle back to earth and cool into rocks with pyroclastic textures?

  • Tuff (correct)
  • Quartz
  • Lava
  • Ash
  • What is the name for the rock formed from large deposits of tephra fragments?

  • Obsidian
  • Basalt
  • Granite
  • Tuff (correct)
  • What does the term 'pyroclastic' refer to in pyroclastic textures?

    <p>The chaotic mix of crystals, angular glass shards, and rock fragments</p> Signup and view all the answers

    What is the term for the tephra fragments that are named based on their size?

    <p>Ash</p> Signup and view all the answers

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